Finally Mary was admitted by Beijing University,for which she 9（?）five timesA.had triedB.watrying C.has tried D.tried
问题描述：
Finally Mary was admitted by Beijing University,for which she 9（?）five timesA.had triedB.wa
trying C.has tried D.tried
答
A。前面是过去时。根据语境后面应用过去完成时
答
最后玛丽终于被北京大学录取了,虽然她尝试了五次.
a 吧
表示在前一个动作完成前已经完成了